[JoelMcCracken]

This is cool. I could see myself using this for notes.

[Rendello]

You can use it with AsciiDoc readily, if you use that [1]. With anything you could also use MathML in an HTML-passthrough block, but it's pretty verbose.

1. https://docs.asciidoctor.org/asciidoctor/latest/stem/asciima...